A formerly glacier-tipped volcano that inspired none other than Jules Verne.

Pop culture has helped to keep this iconic British building from being destroyed.

Stunning Roman aqueduct used for 1900 years and still standing.

A building so large that it has its own weather.

This abandoned-looking amusement park is frighteningly open for business.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A complex of six forts embedded in the Rajasthan hills.

Home to the most complete dodo remains known - one head, and one foot.

An extraordinary "City of Caves" carved from solid stone.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Climb inside an iron crystal magnified 165 billion times its normal size.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

A miniature train-ride through Slovenia's largest cave system.

Cozy basement bar sports an inventory of over 2,000 beers.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

A sulfuric martian landscape that looks far better than it smells.